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    661 repositories

    • EPA_MOVES_Model

      Public
      Estimating emissions for mobile sources
      oar
      Java
      •
      Other
      •34•94•1•0•Updated Nov 17, 2025Nov 17, 2025

    • ccte-api-exposure

      Public
      Part of CCTE Public API
      Java
      •
      MIT License
      •1•0•5•0•Updated Nov 17, 2025Nov 17, 2025

    • ccte-api-bioactivity

      Public
      Java
      •
      MIT License
      •1•1•9•0•Updated Nov 17, 2025Nov 17, 2025

    • ccte-api-hazard

      Public
      Java
      •
      MIT License
      •1•1•5•0•Updated Nov 17, 2025Nov 17, 2025

    • ccte-api-chemical

      Public
      Code for chemical microservice used in CCTE APIs
      ordccte
      Java
      •
      MIT License
      •2•3•26•0•Updated Nov 17, 2025Nov 17, 2025

    • EPATADA

      Public
      This R package can be used to compile and evaluate Water Quality Portal (WQP) data for samples collected from surface water monitoring sites on streams and lakes. It can be used to create applications that support water quality programs and help states, tribes, and other stakeholders efficiently analyze the data.
      ow
      R
      •
      Creative Commons Zero v1.0 Universal
      •23•60•93•4•Updated Nov 17, 2025Nov 17, 2025

    • Water_Treatment_Models

      Public
      Predicting water treatment unit operation effectiveness
      ord
      Python
      •
      MIT License
      •32•36•1•0•Updated Nov 17, 2025Nov 17, 2025

    • power-profiler

      Public
      Code used to develop eGRID's Power Profiler
      oaregrid
      Vue
      •
      MIT License
      •7•24•34•3•Updated Nov 17, 2025Nov 17, 2025

    • MCSimMod

      Public
      MCSim Models in R
      rodeode-modelpbpkpbpk-modeling
      C
      •
      GNU General Public License v3.0
      •0•9•0•0•Updated Nov 17, 2025Nov 17, 2025

    • spmodel

      Public
      spmodel: Spatial Statistical Modeling and Prediction in R
      R
      •
      GNU General Public License v3.0
      •4•18•0•0•Updated Nov 17, 2025Nov 17, 2025

    • webcms

      Public
      Content management system for EPA's flagship website, www.epa.gov
      awsterraformomsdrupal-10
      JavaScript
      •9•12•0•27•Updated Nov 17, 2025Nov 17, 2025

    • ctx-python

      Public
      Python wrapper for U.S. EPA's Center for Computational Toxicology and Exposure (CTE) APIs.
      Python
      •
      GNU General Public License v3.0
      •6•13•0•2•Updated Nov 17, 2025Nov 17, 2025

    • rExpertQuery

      Public
      An R package designed for retrieving ATTAINS data efficiently via Expert Query web services.
      HTML
      •
      Creative Commons Zero v1.0 Universal
      •4•8•3•0•Updated Nov 17, 2025Nov 17, 2025

    • code-json-generator

      Public
      Automation that scrapes USEPA github and provides that metadata for code.gov
      oms
      JavaScript
      •
      MIT License
      •10•1•0•0•Updated Nov 17, 2025Nov 17, 2025

    • CIP-service

      Public
      Updated version of Catchment Index Processing (CIP) Service to provide an API where outside users can index their own GIS data to NHDPlus hydrography
      ow
      PLpgSQL
      •
      Creative Commons Zero v1.0 Universal
      •2•5•0•0•Updated Nov 17, 2025Nov 17, 2025

    • campdRShinyDataSource

      Public
      R
      •
      MIT License
      •2•3•0•0•Updated Nov 15, 2025Nov 15, 2025

    • emanifest-workflow

      Public
      Vue
      •0•1•0•0•Updated Nov 14, 2025Nov 14, 2025

    • TADACommunityHub

      Public
      A collaborative hub where TADA users share and maintain information for custom workflows (e.g., state, tribal, territory, EPA, or other entities). For example, it includes user-contributed criteria and methodologies templates to support reproducible and efficient analyses.
      R
      •
      Creative Commons Zero v1.0 Universal
      •0•0•0•0•Updated Nov 14, 2025Nov 14, 2025

    • spmodel.glm.manuscript

      Public
      Supplement for "Spatial generalized linear models in R using spmodel"
      HTML
      •
      GNU General Public License v3.0
      •0•0•0•0•Updated Nov 14, 2025Nov 14, 2025

    • IntraCMS

      Public
      US EPA Intranet CMS
      phpdrupaloms
      CSS
      •
      MIT License
      •3•6•0•0•Updated Nov 13, 2025Nov 13, 2025

    • EnviroAtlas_v4

      Public
      EnvrioAtlas migration to JS4. Easy to use, interactive mapping application to access hundreds of maps showing environmental data
      ord
      Svelte
      •
      MIT License
      •0•1•0•0•Updated Nov 13, 2025Nov 13, 2025

    • SSN2

      Public
      SSN2: Spatial Modeling on Stream Networks in R
      R
      •
      GNU General Public License v3.0
      •7•24•0•0•Updated Nov 13, 2025Nov 13, 2025

    • StreamCatTools

      Public
      R package to work with the StreamCat API within R and access the full suite of StreamCat catchment and watershed scale metrics for all NHDPlusV2 stream reaches and catchments.
      streamcat
      R
      •
      Creative Commons Zero v1.0 Universal
      •10•37•11•0•Updated Nov 13, 2025Nov 13, 2025

    • GeoPlatform-Request-Tool

      Public
      Provisions EPA GeoPlatform (GPO) user accounts during emergency response events and projects
      r09
      Python
      •3•6•26•10•Updated Nov 13, 2025Nov 13, 2025

    • csb-rebate-forms-app

      Public
      Code related to the U.S. EPA Clean School Bus (CSB) data collection system. Specifically, this repository provides code for the cloud.gov hosted CSB Rebate Forms Application (i.e., Applicant Dashboard).
      CSS
      •
      Creative Commons Zero v1.0 Universal
      •2•2•0•1•Updated Nov 12, 2025Nov 12, 2025

    • EnviroAtlas_DB

      Public
      Repo for storing Enviroatlas DB
      JavaScript
      •0•0•0•1•Updated Nov 12, 2025Nov 12, 2025

    • WNTR

      Public
      An EPANET compatible python package to simulate and analyze water distribution networks under disaster scenarios.
      pythonsimulationmodelingwaterord
      Python
      •
      Other
      •211•400•36•0•Updated Nov 12, 2025Nov 12, 2025

    • provisional_habs

      Public
      Repository holding data from Harmful Algal Bloom (HAB) monitoring conducted by United States Environmental Protection Agency, Office of Research and Development, Center for Environmental Measurement and Modelling, Atlantic Coastal Environmental Sciences Division researchers
      Creative Commons Zero v1.0 Universal
      •2•3•0•0•Updated Nov 12, 2025Nov 12, 2025

    • BMDS

      Public
      U.S EPA Benchmark Dose Modeling Software (BMDS)
      toxicologyrisk-assessmentdose-response-modelingorddose-response
      C++
      •
      MIT License
      •5•6•2•1•Updated Nov 12, 2025Nov 12, 2025

    • flowsa

      Public
      Library that attributes resource use, waste, emissions, and loss to economic sectors
      ord
      Python
      •
      MIT License
      •24•34•26•0•Updated Nov 10, 2025Nov 10, 2025